Weather in Lahti in September
The weather in Lahti in September is extremely hot, while temperatures can easily rise above 30 degrees. This hot weather is not advisable for long walks and outdoors activity, so please prepare for summer conditions with water and comfortable light clothes for a trip in Lahti during September.
Avg Temp
23° - 30°
Avg Rainy Days
15
Avg Dry Days
15
Avg Snow Days
0
Weather Facts - Lahti in September
* The warmest temperature recorded in in September is 35°C
* The coldest temperature recorded in Lahti in September is 8°C
* The average rainfall in Lahti in September is 126 mm